Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

Stock-Based Compensation

Summary of stock option activity

	SHARES			WEIGHTED- AVERAGE EXERCISE PRICE	WEIGHTED- AVERAGE REMAINING CONTRACTUAL LIFE (in years)		AGGREGATE INTRINSIC VALUE (in thousands)
Options outstanding at January 1, 2010	3,693,697		$	36.43	3.1
Granted	846,000			23.30
Exercised	(200,758	)		8.62
Forfeited	(616,283	)		46.46
Options outstanding at December 31, 2010	3,722,656		$	33.29	2.8	$	1,315
Available for future grant	1,477,072
Total shares reserved at December 31, 2010	5,199,728
Options exercisable at December 31, 2010	2,580,526		$	38.23	2.3	$	588
Options outstanding at January 1, 2011	3,722,656		$	33.29	2.8
Granted	781,000			16.52
Exercised	(44,398	)		11.97
Forfeited	(510,384	)		43.36
Options outstanding at December 31, 2011	3,948,874		$	28.91	2.4	$	553
Available for future grant	3,346,508
Total shares reserved at December 31, 2011	7,295,382
Options exercisable at December 31, 2011	2,574,246		$	34.35	1.7	$	369
Options outstanding at January 1, 2012	3,948,874		$	28.91	2.4
Granted	756,000			18.55
Exercised	(568,293	)		18.89
Forfeited	(717,158	)		35.38
Options outstanding at December 31, 2012	3,419,423		$	26.92	2.9	$	42,992
Available for future grant	3,016,108
Total shares reserved at December 31, 2012	6,435,531
Options exercisable at December 31, 2012	1,967,786		$	33.10	1.6	$	16,939

Summary of stock options outstanding and exercisable

	OPTIONS OUTSTANDING					OPTIONS EXERCISABLE
RANGE OF EXERCISE PRICES		NUMBER OUTSTANDING	WEIGHTED- AVERAGE REMAINING LIFE (in years)		WEIGHTED- AVERAGE EXERCISE PRICE		NUMBER EXERCISABLE		WEIGHTED- AVERAGE EXERCISE PRICE
$14.13 to $18.22		1,638,376	4.2	$	16.96		417,067	$	15.24
$20.99 to $37.37		1,012,603	1.6		25.66		782,275		26.18
$40.00 to $72.13		768,444	1.6		49.84		768,444		49.84

Summary of weighted-average inputs used and grant date fair values determined for stock options granted

		2012			2011			2010
Expected volatility		49.3	%		51.0	%		53.6	%
Expected dividend yield		0.7	%		0.7	%		0.5	%
Expected term (in years)		4.5			3.5			3.5
Risk-free rate		0.8	%		1.4	%		1.6	%
Weighted-average grant-date fair value	$	7.21		$	6.02		$	9.05

Summary of the Company's nonvested options

	2012					2011					2010
		SHARES			WEIGHTED- AVERAGE GRANT-DATE FAIR VALUE		SHARES			WEIGHTED- AVERAGE GRANT-DATE FAIR VALUE		SHARES			WEIGHTED- AVERAGE GRANT-DATE FAIR VALUE
Nonvested options outstanding at January 1		1,374,628		$	7.00		1,142,130		$	8.31		883,398		$	8.23
Granted		756,000			7.21		781,000			6.02		846,000			9.05
Vested		(611,659	)		7.03		(498,507	)		8.37		(425,107	)		9.44
Forfeited		(67,332	)		7.47		(49,995	)		7.89		(162,161	)		8.79
Nonvested options outstanding at December 31		1,451,637		$	7.08		1,374,628		$	7.00		1,142,130		$	8.31

Summary of activity that relates to the Company's restricted stock unit awards

	2012		2011		2010
Restricted stock units at January 1	657,825		727,317		609,812
Shares awarded	473,408		305,000		404,000
Shares vested	(350,349	)	(314,492	)	(235,496	)
Shares forfeited	(6,667	)	(60,000	)	(50,999	)
Restricted stock units at December 31	774,217		657,825		727,317